This is a genuine BMW hose elbow, part number 34 32 1 164 678. The number stamped on the part is 34321164678; BMW's catalog files it under the short number 1164678. You will find it on our Brakes shelf, under Brake lines.
It fits the E46 sedan, coupe, convertible and touring (320i, 323i, 328i and 330i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 2 diagrams, among them Front brake pipe, DSC (34_0775) and Front brake pipe, DSC (34_1073). It weighs about 13 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
